WO2005014900A1 - Dispositif de filature par fusion, refroidissement et d'enroulement - Google Patents

Dispositif de filature par fusion, refroidissement et d'enroulement Download PDF

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Publication number
WO2005014900A1
WO2005014900A1 PCT/EP2004/007467 EP2004007467W WO2005014900A1 WO 2005014900 A1 WO2005014900 A1 WO 2005014900A1 EP 2004007467 W EP2004007467 W EP 2004007467W WO 2005014900 A1 WO2005014900 A1 WO 2005014900A1
Authority
WO
WIPO (PCT)
Prior art keywords
jacket
blow
cooling
additional
filament
Prior art date
Application number
PCT/EP2004/007467
Other languages
German (de)
English (en)
Inventor
Jörg Hegenbarth
Hansjörg MEISE
Original Assignee
Saurer Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saurer Gmbh & Co. Kg filed Critical Saurer Gmbh & Co. Kg
Priority to EP04740775A priority Critical patent/EP1646737A1/fr
Priority to JP2006520715A priority patent/JP2006528283A/ja
Publication of WO2005014900A1 publication Critical patent/WO2005014900A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes

Definitions

  • the invention relates to a device for melt spinning, cooling and winding a thread formed from a filament sheet according to the preamble of claim 1 and a device for cooling a filament sheet according to the preamble of claim 14.
  • the cooling of the extruded filament strands is of particular importance for the later quality of the synthetic thread formed from the filament strands.
  • very fine filament strands are extruded, which react very sensitively to cooling by a flow of cooling air and therefore require particularly uniform cooling.
  • a basic distinction is made between two cooling processes for cooling melt-spun filament strands.
  • a cooling air flow is directed from the outside onto a filament bundle.
  • particular care must be taken to ensure that the filament strands routed inside are adequately cooled.
  • the filament strands are spun in an annular arrangement and in the center of the annular filaments a cooling air flow directed from the inside out is generated.
  • the invention is based on this principle.
  • So-called blow candles are used to generate the cooling air flow penetrating the filament curtain from the inside, as is known, for example, from DE 196 53 451 AI.
  • the blow candle is cylindrical and has a porous gas-permeable blow jacket.
  • the blow candle is closed at one end and connected at an opposite end to an air outlet through which cooling air is introduced into the interior of the blow candle.
  • the blow jacket consists of a porous material with a certain flow resistance.
  • blow jacket of the blow candle It is known to manufacture the blow jacket of the blow candle from sintered metal, metal foam, foam or wound paper layers. As a result of the pores and openings contained irregularly in the materials, a flow which is often not sufficiently laminar and is not uniform over the entire surface is generated when the cooling air exits the blow jacket. Such flow profiles, however, lead to irregularities in the cooling of fine filament strands, which also negatively affect the smooth running of the filament strands.
  • conventional blow candles have a blow jacket with low permeability and therefore require high pressure differences in order to obtain an outflow over the entire surface of the blow candle. However, this inevitably leads to irregularities due to preferred outflow regions, which also have turbulence. However, it is not possible to increase the gas permeability in the blow jacket, since the effect of the non-uniformity of the cooling air emerging in the regions of the blow candle increases.
  • Another object of the invention is a device for melt spinning and cooling and a device for cooling the input to further develop the type mentioned in such a way that a cooling air flow generated uniformly over the entire cooling section for cooling the filament sheet predominates.
  • the object is achieved according to the invention by a device for melt spinning and cooling with the features according to claim 1, and by a device for cooling a filament sheet according to claim 14.
  • the invention is characterized in that the cooling air emerging from the blow candle is converted into a laminar flow in a predetermined direction before striking the filament strands.
  • An air movement of the cooling air that is suitable for cooling fine filament strands can thus be generated, which leads to a uniform formation and solidification of the individual filament strands. Irregularities in the uniformity of filament to filament and in the yarn uniformity over time could thus advantageously be avoided.
  • the additional jacket provided for equalization and for aligning the cooling air flow has a material with a large number of openings, which essentially does not cause any additional flow resistance.
  • the blowing characteristic of the blowing jacket enclosed by the additional jacket is thus essentially not influenced and only a conversion of the cooling air emerging as a turbulent flow from the blowing jacket into a laminar flow is carried out.
  • the material of the additive has essentially radially oriented openings in order to bring about a cooling air flow directed transversely onto the filament strands.
  • a cooling air flow directed transversely onto the filament strands is generated.
  • a multilayer wire mesh with a large open flow area is particularly advantageous as the material for the additional jacket. Negligible flow resistances occur here.
  • perforated or honeycomb sheet metal bodies can also be used, which are preferably seamless.
  • the additional jacket bears with contact on the blow jacket and is held by the blow candle.
  • This embodiment has the advantage that a support effect is generated on the blow jacket by the additional jacket, so that the blow jacket can be made of paper or low-strength foam.
  • blow jacket and the additional jacket can advantageously be joined together to form a structural unit which considerably simplifies the handling of the blow candle.
  • the additional jacket can be arranged interchangeably on the holding device, so that when changing a thread titer or a polymer appropriate adaptation of the cooling can be carried out by replacing the additional jacket.
  • the additional jacket In order not to receive any axial currents in the case of exchangeable additional shells in the annular space formed between the blow jacket and the additional jacket, the additional jacket is held in an operating position at the free end of the blow candle by means of a spacer on the stop of the spinning device by the holding device. The additional jacket is thus securely sealed at the ends between the spacer and the holding device.
  • the blow candle with the additional jacket can advantageously be moved from the operating position away from the spinning device into a waiting position by the holding device.
  • the holding device is adjustable in height and / or pivotable relative to the spinning device.
  • the holding device below the blow candle is provided with a preparation device which has a preparation ring contacted by the filament sheet. This means that the entire filament set is evenly prepared into a synthetic thread before being brought together.
  • the filament sheet is preferably brought together by a collecting thread guide arranged after the preparation device.
  • one or more can be
  • Partly stretched POY threads or fully stretched FDY threads can be produced, for example, from a meltable synthetic polymer for example polyester, polyamide or polypropylene. Basically, it can be used to produce textile or technical threads.
  • the invention also extends to processes of this type, in which an annular sheet of filaments are to be cooled while maintaining high uniformity, such as, for example, in the production of staple fibers.
  • the filament strands can advantageously be cooled by a device according to the invention before they are combined to form a spinning cable.
  • the device according to the invention can also be developed according to claim 14 by the aforementioned features and combinations of features of claims 4 to 13. The device according to the invention is explained in more detail below with the aid of a few exemplary embodiments and with reference to the accompanying drawings.
  • Fig. 1 shows schematically a view of a first embodiment of the device according to the invention
  • Fig. 2 shows schematically a view of a further embodiment of a device according to the invention
  • FIG. 3 schematically shows a detail from the jacket of the blow candle of the exemplary embodiment according to FIG. 2
  • FIG. 1 schematically shows a first exemplary embodiment of a device according to the invention for melt spinning, cooling and winding up a synthetic one
  • the device has a spinning device 1, a K ⁇ M Rhein 6 arranged below the spinning device 1 and a winding device 19 arranged downstream of the cooling device 6.
  • the spinning device 1 contains a heated spinning head 2, which carries a spinneret 3 on its underside.
  • the spinneret 3 has an annular arrangement of a plurality of nozzle bores on the underside for extruding a plurality of filament strands. Further melt-conveying and melt-conveying components are arranged within the spinning head 2, not shown here.
  • the polymer melt supplied via a melt feed 4 is conveyed to the spinneret 3 by a spinning pump (not shown here).
  • a plurality of spinnerets are usually held within the spinning head 2 in order to produce a plurality of threads side by side in parallel. Since the invention can easily be extended to two, three or more threads, the arrangement for producing only one thread has been shown for the sake of clarity.
  • a cooling device 6 is arranged below the spinning device 1.
  • the ffy device 6 has a blow candle 7, which is arranged on a holding device 10.
  • the blow candle 7 is hollow-cylindrical and contains a blow jacket 8, which is formed from a porous material.
  • the material of the blow jacket 8 can be formed by wound paper layers, foam of the sintered metal.
  • the blow jacket 8 is closed by an end piece 15.
  • the blow jacket 8 is arranged on the holding device 10 with the opposite end.
  • an additional jacket 9 is arranged on the holding device 10, which encloses the blow jacket 8 in the form of a jacket.
  • the blow candle 7 and the additional jacket 9 are arranged via a spacer 14 in the center of the spinneret 3 on the underside of the spinning head 2.
  • the spacer 14 is held at the end of the blow candle 7 by the holding device 10 at a stop 22 on the underside of the spinneret 3.
  • the additional casing 9 and the blow candle 7 held in the interior of the additional casing are in their operating position in the center of the spinneret 3.
  • the holding device 10 is designed to be height-adjustable and pivotable for positioning the blow candle 7 and the additional casing 9.
  • the holding device 10 is coupled to an air duct 11.
  • the air supply 11 is connected to a cooling medium source, not shown here, for example a blower.
  • the air supply 11 is coupled to the open end of the blow jacket 8 in the holding device 10 via a channel system.
  • a preparation device 12 is formed on the circumference of the holding device 10.
  • the preparation device 12 is formed here by a preparation ring 13, which has an emerging preparation agent on its surface and wets the filament strands 5 which run along the circumference of the preparation ring 13.
  • a treatment device 18 is provided for pulling off the filament strands 5 or the thread 16.
  • the treatment device 8 is shown symbolically here, since it depends on the thread type to be produced in its nature and composition of the aggregates.
  • One or more godets or godet units for pulling off, guiding or stretching the thread can thus be present.
  • swirling devices, additional preparation devices or thread choppers with suction or thread sensors can be integrated.
  • the thread 16 or the filament strands 5 could also be drawn off directly by the winding device 19.
  • a take-up device 19 is provided below the treatment device 18 to receive the threads.
  • the winding device 19 is through the
  • a melted polymer material for example by an extruder or a pump, is fed into the spinning device 1.
  • the polymer melt enters the spinning head 2 via the heated melt feed 4 and is guided to the spinneret 3 under pressure.
  • the spinneret 3 is circular in shape and contains on its underside one or more annular rows of holes from which the polymer melt emerges as fine filament strands 5. After the filament strands 5 have been extruded through the spinneret 3, the filament strands 5 pass through the cooling device 6 arranged below the spinning device 1.
  • cooling air is fed in via the air supply 11, which air is led into the interior of the blow candle 7 under a pre-pressure becomes. Due to the pre-pressure, a cooling air flow radially penetrates the blow jacket 8 of the blow candle 7. The flow arising at the periphery of the blow jacket 8 is essentially determined by the pore distribution of the material of the blow jacket 8.
  • the cooling air flow emerging from the blow jacket 8 of the blow candle 7 is predominantly turbulent. As a material, the blow jacket 8 could be formed by multilayer paper layers or foam or sintered metal. The cooling air flow emerging from the blow jacket 8 is then passed through the additional jacket 9.
  • the additional jacket 9 consists of a material with a plurality of openings, which on the one hand oppose a very low flow resistance to the cooling air flow and on the other hand lead to an orientation of the cooling air flow.
  • the material preferably has radially aligned openings, so that a transverse laminar flow is generated over the entire cooling section on the additional jacket 9 and penetrates the filament curtain for cooling the filament strands 5.
  • the equalization of the cooling air flow through the additional jacket 9 causes a uniform inflow of the filament strands without Turbulences. This results in a high level of smoothness, which is particularly evident in the uniformity of the filament and thus in the thread.
  • the 1-minute flow caused by the additional jacket 9 to cool the filament strands was retained even when the admission pressure of the cooling air was changed within the blow candle to increase the amount of cooling air.
  • the filament strands 5 are brought into contact with the preparation ring 13 of the preparation device 12 on the circumference of the holding device 10. After the preparation, the filament strands 5 are joined together to form the thread 16, which is wound into a bobbin 20 after treatment.
  • the device according to the invention shown in FIG. 1 is particularly suitable for producing textile threads. Both POY threads with partial stretching or FDY threads with full stretching can be produced.
  • the additional sheath is in the embodiment of the device according to the invention shown in FIG. 1. 9 interchangeably coupled to the holding device 10.
  • the holding device 10 is movable so that the blow candle with the additional jacket can be moved from the operating position into a waiting position. An exchange of the additional jacket 9 can be carried out within the waiting position.
  • the hole geometries or the hole arrangements in the additional jacket 9 can be changed by choosing a certain material or a certain shape.
  • the kitchen device 6 arranged below the spinning device 1 is formed by a blow candle 7 in order to generate a radially directed cooling air flow.
  • an additional jacket 9 is placed directly in contact with the blowing jacket 8 over the blowing candle 7.
  • the blow jacket 8 and the additional jacket 9 form a structural unit which is held at the free end by a common end piece 15.
  • the blow jacket 8 and the additional jacket 9 are attached to the holding device 10 with the opposite end, the blow jacket 8 having an open end for receiving the cooling air.
  • the function of the additional jacket 9 and the blow jacket 8 and the structure of the additional jacket 9 and the blow jacket 8 is essentially identical to the previous exemplary embodiment, so that reference is also made to the function of the aforementioned embodiment.
  • the bladder jacket 8 is directly supported by the additional jacket 9.
  • the blow jacket 8 can thus be produced with low strength, for example from foam or thin layers of paper.
  • the additional jacket 9 has a material which has a negligible flow resistance in comparison to the material of the blow jacket 8.
  • the blow jacket 8 is formed from a foam material.
  • the additional jacket 9 is arranged on the outer circumference of the blow jacket 8.
  • the additional jacket 9 is formed by a multi-layer wire mesh 23.
  • the multi-layer wire mesh 23 forms essentially radially aligned openings 24, which leads to equalization of the cooling air flow emerging from the blow jacket 8.
  • a transverse, in-line cooling air flow emerges in order to penetrate the filament strands surrounding the additional sheath 9.
  • the structure of the spinning device and the cooling device shown in the exemplary embodiments in FIGS. 1 and 2 is exemplary.
  • the cooling air supply to the blow candle can also be introduced via the spinning head.
  • the preparation device on the circumference of the holding device can be replaced by a thread guide ring.
  • a preparation device would be assigned to the S-thread guide.
  • the design and the length ratio of the spacer to the length of the blow candle is also exemplary. Basically, the length of the spacer allows a calm zone to be formed in which the filaments are not actively cooled. Post-heaters could also be arranged in such a zone, for example, in order to influence the molecular orientation of the filament strands.
  • the invention also extends to processes of this type, in which the filament strands are joined together after cooling to produce staple fibers as a tow or tow.
  • devices for cooling can be used which are identical in construction to the exemplary embodiments according to FIGS. 1 and 2. In this respect, reference can be made to the above descriptions for the explanation of such devices.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

L'invention concerne un dispositif de filature par fusion, de refroidissement et d'enroulement d'un fil constitué d'une pluralité de filaments extrudés, lequel comprend un dispositif de filature, un dispositif de refroidissement et un dispositif d'enroulement. Le dispositif de filature contient une filière servant à l'extrusion d'un ensemble de filaments annulaire constitué d'une pluralité de filaments extrudés. En-dessous du dispositif de filature, pour le refroidissement des filaments extrudés est disposé le dispositif de refroidissement qui est pourvu d'une bougie soufflante dans laquelle, à partir d'une chemise de soufflage poreuse, est généré un courant d'air de refroidissement qui s'écoule de l'intérieur vers l'extérieur. Pour que l'on puisse obtenir un écoulement laminaire régulier servant au refroidissement des filaments extrudés fins, il est prévu, selon l'invention, que la chemise de soufflage soit entourée d'une chemise supplémentaire qui est constituée d'une matière présentant une pluralité d'ouvertures, cette matière provoquant une orientation du courant d'air de refroidissement sans résistance à l'écoulement importante.
PCT/EP2004/007467 2003-07-18 2004-07-08 Dispositif de filature par fusion, refroidissement et d'enroulement WO2005014900A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04740775A EP1646737A1 (fr) 2003-07-18 2004-07-08 Dispositif de filature par fusion, refroidissement et d'enroulement
JP2006520715A JP2006528283A (ja) 2003-07-18 2004-07-08 溶融紡糸、冷却及び巻取り装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003132645 DE10332645A1 (de) 2003-07-18 2003-07-18 Vorrichtung zum Schmelzspinnen, Kühlen und Aufwickeln
DE10332645.6 2003-07-18

Publications (1)

Publication Number Publication Date
WO2005014900A1 true WO2005014900A1 (fr) 2005-02-17

Family

ID=33560199

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/007467 WO2005014900A1 (fr) 2003-07-18 2004-07-08 Dispositif de filature par fusion, refroidissement et d'enroulement

Country Status (6)

Country Link
EP (1) EP1646737A1 (fr)
JP (1) JP2006528283A (fr)
CN (1) CN1823185A (fr)
DE (1) DE10332645A1 (fr)
TW (1) TW200508433A (fr)
WO (1) WO2005014900A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108411496A (zh) * 2018-04-17 2018-08-17 嘉兴学院 一种利用湍流制备超细纤维非织造布的装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042891A1 (de) * 2005-09-09 2007-03-15 Saurer Gmbh & Co. Kg Vorrichtung und Verfahren zum Schmelzspinnen und Abkühlen eines multifilen Fadens
WO2014118080A1 (fr) * 2013-02-04 2014-08-07 Nv Bekaert Sa Tube de trempe pour extrusion de fibres polymères
DE102016004715A1 (de) * 2016-04-19 2017-10-19 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Abkühlen einer ringförmigen extrudierten Filamentschar
CN109537079B (zh) * 2019-01-29 2024-01-19 绍兴山海纺织有限公司 一种涤纶丝的生产设备
CN114471182B (zh) * 2022-02-24 2023-02-28 江苏创仕德环保科技有限公司 一种高精度一体式中空纤维膜纺丝装置及其生产工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1019517A (en) * 1962-08-23 1966-02-09 Chemicpaserwerk Schwarza Wilhe Method of and apparatus for melt spinning synthetic organic linear high molecular weight polymers
FR2273886A1 (fr) * 1974-06-04 1976-01-02 Teijin Ltd Procede et appareil pour le filage par fusion de polymeres formant des fibres
EP0957187A2 (fr) * 1998-05-14 1999-11-17 Ems-Inventa Ag Dispositif et procédé pour la fabrication de fils microfilaments avec haute regularité de titre à base de polymères thermoplastiques
WO2000073545A1 (fr) * 1999-05-28 2000-12-07 Stork Screens B.V. Dispositif de refroidissement destine a refroidir des filaments
US20040032048A1 (en) * 2002-08-15 2004-02-19 Turner Terence Ernest Apparatus for cooling and finishing melt-spun filaments

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH673659A5 (fr) * 1987-03-05 1990-03-30 Inventa Ag
DE4208568A1 (de) * 1992-03-18 1993-09-23 Zimmer Ag Verfahren und vorrichtung zur herstellung synthetischer endlosfilamente
JP2003113528A (ja) * 2001-10-05 2003-04-18 Toray Eng Co Ltd 紡糸装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1019517A (en) * 1962-08-23 1966-02-09 Chemicpaserwerk Schwarza Wilhe Method of and apparatus for melt spinning synthetic organic linear high molecular weight polymers
FR2273886A1 (fr) * 1974-06-04 1976-01-02 Teijin Ltd Procede et appareil pour le filage par fusion de polymeres formant des fibres
EP0957187A2 (fr) * 1998-05-14 1999-11-17 Ems-Inventa Ag Dispositif et procédé pour la fabrication de fils microfilaments avec haute regularité de titre à base de polymères thermoplastiques
WO2000073545A1 (fr) * 1999-05-28 2000-12-07 Stork Screens B.V. Dispositif de refroidissement destine a refroidir des filaments
US20040032048A1 (en) * 2002-08-15 2004-02-19 Turner Terence Ernest Apparatus for cooling and finishing melt-spun filaments

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108411496A (zh) * 2018-04-17 2018-08-17 嘉兴学院 一种利用湍流制备超细纤维非织造布的装置
CN108411496B (zh) * 2018-04-17 2020-10-23 嘉兴学院 一种利用湍流制备超细纤维非织造布的装置

Also Published As

Publication number Publication date
EP1646737A1 (fr) 2006-04-19
TW200508433A (en) 2005-03-01
DE10332645A1 (de) 2005-02-03
CN1823185A (zh) 2006-08-23
JP2006528283A (ja) 2006-12-14

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